Information showed on the traditional lunar calendar is related to the worship but it will become wasted paper after the days passing. Redesigning the calendar can utilize the papers in favor of reducing the waste of papers, front side is the information of calendar and back side is the joss paper. Wood ash, a natural fertilizer which is a residue powder after burning of plants, however the traditional joss paper cannot become the wood ash, because it used tin foil which is heavy metal.

Therefore, Fertilizer joss paper made by banana peel and paper mulberry, and use edible metal pigments to replace tin foil. It will become a fertilizer when you burn it.

Thickness of calendar is a visual reminder, remind to tear the paper everyday. Fertilizer joss paper costs higher, to remind the low price or free not equal to environmental protection.